Zero Waste Scotland (ZWS) has launched an online resource to support local authorities and others working to tackle the litter problem.
Litter Knowledge Network includes advice, expertise and research on the scale, impact and public attitudes towards littering.
There are downloadable toolkits to support local campaigns to persuade people not to drop litter.
The resource builds on several initiatives during the past three years, including higher penalties for littering and the carrier bag charge.
Iain Gulland, chief executive of ZWS, said: “Litter Knowledge Network … includes great case studies on what works and what doesn’t – a really useful body of practical and well-tested work, backed up by evidence.
”This evidence shows that simply cleaning up litter after it has been dropped is an endless task because the issue still affects many of our communities and it it is costing Scotland more than £1m a week.”
Environment secretary Roseanna Cunningham said: “The Scottish Government has made prevention of litter and fly-tipping the cornerstone of Scotland’s national litter strategy, Towards a Litter-Free Scotland, and this new resource should be valuable to all stakeholders in helping tackle the problem.”